a department store charges 2.25% per month on the unpaid balance for customers with charge accounts. A customer charged $200 worth of merchandise but...

a department store charges 2.25% per month on the unpaid balance for customers with charge accounts. A customer charged $200 worth of merchandise but then lost her job due to economic cutbacks. When will the customer max out her account of $2000 credit since she can make no monthly payments? Use A=P(1+r)^nt